My account without agreeing to deal

In September 2014, Elite Mobile offered me a cellphone package (Ref no. EM - ***-7), I initially agreed to the deal but then the following day I communicated with them that I am cancelling the deal (I have email proof). To my surprise I recently found out that they have been debiting my account since the end of September 2014. I tried to contact them but I am unable to get through to them.<br> <br> I would like this to be sorted, as I didn't receive anything from them except being billed. I want a full refund of all the monies that were debited without my consent or else, I will escalate this matter.